$Keyboard US/EU
The $Keyboard directive changes the internal setting in EES to conform to the either the US or EU settings. It does not change any problem information. The $Keyboard directive should be placed at the top of the Equations window.
Example:
$Keyboard US
T=converttemp(C, K, 21.5[C])
or
$Keyboard EU
T=converttemp(C; K; 21,5[C])